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A Small Class to Read INI File

, 27 Jun 2005 CPOL
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A small class to read INI File, only has 4 methods: ReadInteger, ReadFloat, ReadBoolean, ReadString.

Introduction

I have written two classes CIniReader and CIniWriter. They are used to read and write .Ini files. They only have four methods, and are very simple and useful.

IniReader.h

#ifndef INIREADER_H
#define INIREADER_H
class CIniReader
{
public:
 CIniReader(char* szFileName); 
 int ReadInteger(char* szSection, char* szKey, int iDefaultValue);
 float ReadFloat(char* szSection, char* szKey, float fltDefaultValue);
 bool ReadBoolean(char* szSection, char* szKey, bool bolDefaultValue);
 char* ReadString(char* szSection, char* szKey, const char* szDefaultValue);
private:
  char m_szFileName[255];
};
#endif//INIREADER_H

IniReader.cpp

#include "IniReader.h"
#include <iostream>
#include <Windows.h>

CIniReader::CIniReader(char* szFileName)
{
 memset(m_szFileName, 0x00, 255);
 memcpy(m_szFileName, szFileName, strlen(szFileName));
}
int CIniReader::ReadInteger(char* szSection, char* szKey, int iDefaultValue)
{
 int iResult = GetPrivateProfileInt(szSection,  szKey, iDefaultValue, m_szFileName); 
 return iResult;
}
float CIniReader::ReadFloat(char* szSection, char* szKey, float fltDefaultValue)
{
 char szResult[255];
 char szDefault[255];
 float fltResult;
 sprintf(szDefault, "%f",fltDefaultValue);
 GetPrivateProfileString(szSection,  szKey, szDefault, szResult, 255, m_szFileName); 
 fltResult =  atof(szResult);
 return fltResult;
}
bool CIniReader::ReadBoolean(char* szSection, char* szKey, bool bolDefaultValue)
{
 char szResult[255];
 char szDefault[255];
 bool bolResult;
 sprintf(szDefault, "%s", bolDefaultValue? "True" : "False");
 GetPrivateProfileString(szSection, szKey, szDefault, szResult, 255, m_szFileName); 
 bolResult =  (strcmp(szResult, "True") == 0 || 
		strcmp(szResult, "true") == 0) ? true : false;
 return bolResult;
}
char* CIniReader::ReadString(char* szSection, char* szKey, const char* szDefaultValue)
{
 char* szResult = new char[255];
 memset(szResult, 0x00, 255);
 GetPrivateProfileString(szSection,  szKey, 
		szDefaultValue, szResult, 255, m_szFileName); 
 return szResult;
}

IniWriter.h

#ifndef INIWRITER_H
#define INIWRITER_H
class CIniWriter
{
public:
 CIniWriter(char* szFileName); 
 void WriteInteger(char* szSection, char* szKey, int iValue);
 void WriteFloat(char* szSection, char* szKey, float fltValue);
 void WriteBoolean(char* szSection, char* szKey, bool bolValue);
 void WriteString(char* szSection, char* szKey, char* szValue);
private:
 char m_szFileName[255];
};
#endif //INIWRITER_H

IniWriter.cpp

#include "IniWriter.h"
#include <iostream>
#include <Windows.h> 
CIniWriter::CIniWriter(char* szFileName)
{
 memset(m_szFileName, 0x00, 255);
 memcpy(m_szFileName, szFileName, strlen(szFileName));
}
void CIniWriter::WriteInteger(char* szSection, char* szKey, int iValue)
{
 char szValue[255];
 sprintf(szValue, "%d", iValue);
 WritePrivateProfileString(szSection,  szKey, szValue, m_szFileName); 
}
void CIniWriter::WriteFloat(char* szSection, char* szKey, float fltValue)
{
 char szValue[255];
 sprintf(szValue, "%f", fltValue);
 WritePrivateProfileString(szSection,  szKey, szValue, m_szFileName); 
}
void CIniWriter::WriteBoolean(char* szSection, char* szKey, bool bolValue)
{
 char szValue[255];
 sprintf(szValue, "%s", bolValue ? "True" : "False");
 WritePrivateProfileString(szSection,  szKey, szValue, m_szFileName); 
}
void CIniWriter::WriteString(char* szSection, char* szKey, char* szValue)
{
 WritePrivateProfileString(szSection,  szKey, szValue, m_szFileName);
}

Main.cpp

#include "iostream"
#include "IniWriter.h"
#include "IniReader.h"
int main(int argc, char * argv[])
{
 CIniWriter iniWriter(".\\Logger.ini");
 iniWriter.WriteString("Setting", "Name", "jianxx");   
 iniWriter.WriteInteger("Setting", "Age", 27); 
 iniWriter.WriteFloat("Setting", "Height", 1.82f); 
 iniWriter.WriteBoolean("Setting", "Marriage", false);  
 CIniReader iniReader(".\\Logger.ini");
 char *szName = iniReader.ReadString("Setting", "Name", "");   
 int iAge = iniReader.ReadInteger("Setting", "Age", 25); 
 float fltHieght = iniReader.ReadFloat("Setting", "Height", 1.80f); 
 bool bMarriage = iniReader.ReadBoolean("Setting", "Marriage", true); 
 
 std::cout<<"Name:"<<szName<<std::endl
   <<"Age:"<<iAge<<std::endl 
   <<"Height:"<<fltHieght<<std::endl 
   <<"Marriage:"<<bMarriage<<std::endl; 
 delete szName;  
 return 1;   
}

History

  • 27th June, 2005: Initial post

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

xiaohe521
Web Developer
China China
My Name is Xiangxiong Jian ,I love Programming ,And I love the sharing code

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Comments and Discussions

 
GeneralMy vote of 2 Pin
raiserle10-Apr-16 1:48
memberraiserle10-Apr-16 1:48 
QuestionThanks, its really save my time Pin
vjletter7-Sep-15 13:27
membervjletter7-Sep-15 13:27 
QuestionGood job, +5! Pin
_duDE_2-Jun-15 22:34
professional_duDE_2-Jun-15 22:34 
Questionfixed memory leak problem Pin
smart_dummies25-Mar-14 22:13
membersmart_dummies25-Mar-14 22:13 
AnswerRe: fixed memory leak problem Pin
Member 1095594129-Jul-14 9:02
memberMember 1095594129-Jul-14 9:02 
GeneralRe: fixed memory leak problem Pin
stevehoang2-Dec-14 7:53
memberstevehoang2-Dec-14 7:53 
AnswerRe: fixed memory leak problem Pin
itechdev5-Jul-15 13:49
memberitechdev5-Jul-15 13:49 
QuestionGreat piece of code Pin
John Connor28-Feb-14 17:09
memberJohn Connor28-Feb-14 17:09 
GeneralMy vote of 5 Pin
Member 995379625-Apr-13 2:36
memberMember 995379625-Apr-13 2:36 
GeneralShort and sweet. Pin
Functino29-Nov-12 14:31
memberFunctino29-Nov-12 14:31 
Questionyes very good but how do I download? lol Pin
fran kener15-Sep-12 3:41
memberfran kener15-Sep-12 3:41 
GeneralMy vote of 5 Pin
satthutinhoc30-Jul-11 22:50
membersatthutinhoc30-Jul-11 22:50 
GeneralMy vote of 5 Pin
mikkojay15-Sep-10 10:40
membermikkojay15-Sep-10 10:40 
QuestionKeep quotes? Pin
Member 362156629-Apr-10 17:53
memberMember 362156629-Apr-10 17:53 
GeneralAwesome! Pin
samaursa28-Nov-09 13:47
membersamaursa28-Nov-09 13:47 
GeneralRe: Awesome! Pin
samaursa28-Nov-09 13:49
membersamaursa28-Nov-09 13:49 
Questionwhy? Pin
Member 43037994-Nov-09 10:26
memberMember 43037994-Nov-09 10:26 
GeneralMy vote of 1 Pin
Jol1-Nov-09 16:20
memberJol1-Nov-09 16:20 
GeneralCannot Convert from Char* to LPCWSTR Pin
r_programmer11-Aug-09 1:28
memberr_programmer11-Aug-09 1:28 
GeneralRe: Cannot Convert from Char* to LPCWSTR Pin
Blaz10-Sep-09 3:40
memberBlaz10-Sep-09 3:40 
GeneralRe: Cannot Convert from Char* to LPCWSTR Pin
BIGLY5-Oct-09 8:43
memberBIGLY5-Oct-09 8:43 
GeneralRe: Cannot Convert from Char* to LPCWSTR Pin
Kendrick Hang26-Aug-10 13:42
memberKendrick Hang26-Aug-10 13:42 
GeneralReading all the sections in a INI file Pin
Al_S22-Jul-09 16:01
memberAl_S22-Jul-09 16:01 
GeneralThanks! [modified] Pin
burger8720-Apr-09 15:16
memberburger8720-Apr-09 15:16 
QuestionRe: Thanks! [Please read previous post] Pin
burger8721-Apr-09 17:10
memberburger8721-Apr-09 17:10 
Generalhel compile this code in visual c++ or in dev c++ Pin
domyprogam30-Mar-09 0:34
memberdomyprogam30-Mar-09 0:34 
GeneralVery Helpful Pin
Member 146884618-Jul-08 2:04
memberMember 146884618-Jul-08 2:04 
GeneralThanks and congratulations Xiangxiong. Very simple, elegant code. Pin
kgaueee10-Oct-07 4:37
memberkgaueee10-Oct-07 4:37 
GeneralEasy to use Pin
SbarBaz3-May-07 23:22
memberSbarBaz3-May-07 23:22 
QuestionIs it possible to delete anything? Pin
hanne12319-Jan-07 4:15
memberhanne12319-Jan-07 4:15 
AnswerRe: Is it possible to delete anything? Pin
Nick Alexeev16-Aug-07 17:32
memberNick Alexeev16-Aug-07 17:32 
GeneralWorks Great! Thank You! Pin
Master_God15-Jan-07 1:45
memberMaster_God15-Jan-07 1:45 
GeneralTrouble Compiling Pin
jrpohl1-Sep-06 7:33
memberjrpohl1-Sep-06 7:33 
GeneralRe: Trouble Compiling Pin
marshman15-Oct-06 20:35
membermarshman15-Oct-06 20:35 
GeneralCorrect Path Pin
waldermort4-Aug-06 2:27
memberwaldermort4-Aug-06 2:27 
GeneralGood one dude. Pin
jayender10-Apr-06 23:23
memberjayender10-Apr-06 23:23 
GeneralThanks Pin
TehSausage20-Dec-05 11:34
memberTehSausage20-Dec-05 11:34 
QuestionWhy no link to download? Pin
;hfdi[daokjgfpino[3-Nov-05 5:06
member;hfdi[daokjgfpino[3-Nov-05 5:06 
QuestionHow to comment the INI? Pin
FlyingDancer21-Aug-05 18:13
memberFlyingDancer21-Aug-05 18:13 
AnswerRe: How to comment the INI? Pin
Nick Alexeev19-Nov-06 20:50
memberNick Alexeev19-Nov-06 20:50 
GeneralReadBoolean Pin
Roger6527-Jun-05 6:44
memberRoger6527-Jun-05 6:44 
GeneralRe: ReadBoolean Pin
xiaohe52127-Jun-05 18:56
memberxiaohe52127-Jun-05 18:56 
Generaln1 code Pin
pyrokar27-Jun-05 6:19
memberpyrokar27-Jun-05 6:19 
GeneralRe: n1 code Pin
xiaohe52128-Jun-05 0:06
memberxiaohe52128-Jun-05 0:06 
GeneralRe: n1 code Pin
pyrokar28-Jun-05 3:15
memberpyrokar28-Jun-05 3:15 
GeneralNice Pin
ThatsAlok27-Jun-05 1:48
memberThatsAlok27-Jun-05 1:48 
Generalthanks for your sharing your code Pin
wanttoflyfish27-Jun-05 1:25
memberwanttoflyfish27-Jun-05 1:25 

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